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OLM for chevy DI engine #4470419
07/25/17 07:55 PM
07/25/17 07:55 PM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline OP
merconvvv  Offline OP
Joined: Jul 2016
Posts: 682
il usa
My sis 2016 chevy equinox olm is to 38 percent.
She asked me when she should take it in for oil change. To be on the safe side I was thinking 25 to 20 percent as it is the 2.4 direct injection engine.

I have never had to deal with olm before so what would be a good percentage to take it in if i want that engine to be clean of deposits and wear.

Being the sister of bitog member she is required to almost continuosly monitor the olm on the screen. She came back from 400 mile hwy trip and noted olm dropped by 2 percent. I think thats what she said.

Now if i could make her read the owners manual!


1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: OLM for chevy DI engine [Re: merconvvv] #4470433
07/25/17 08:08 PM
07/25/17 08:08 PM
Joined: May 2015
Posts: 973
Missouri
gabriel9766 Offline
gabriel9766  Offline
Joined: May 2015
Posts: 973
Missouri
Originally Posted By: merconvvv
My sis 2016 chevy equinox olm is to 38 percent.
She asked me when she should take it in for oil change. To be on the safe side I was thinking 25 to 20 percent as it is the 2.4 direct injection engine.

I have never had to deal with olm before so what would be a good percentage to take it in if i want that engine to be clean of deposits and wear.

Being the sister of bitog member she is required to almost continuosly monitor the olm on the screen. She came back from 400 mile hwy trip and noted olm dropped by 2 percent. I think thats what she said.

Now if i could make her read the owners manual!

My 2015 malibu is DI, i follow the OLM down to 15-20% and change it. 15-20% is usually 5-6k. Make sure to keep an eye on the oil level on the 2.4L, they can b oil burners. Also i did a UAO on my last oil change and it still had plenty of life left w 16% left on the OLM W/ 6,200 miles.

Last edited by gabriel9766; 07/25/17 08:11 PM.

2015 Malibu LT 2.5L PPPP 0w20 46.1K
2007 Escape XLT 3.0L 5Q STHM 5w30/1Q MC full syn 5W20 115K
2010 Fusion SE 2.5L MC 0w20 110K
2008 Escape XLT 2.3L MC 5w30 187K
2007 Fusion SE 2.3L- 173.5K STHM 0W20
Re: OLM for chevy DI engine [Re: merconvvv] #4470435
07/25/17 08:11 PM
07/25/17 08:11 PM
Joined: Sep 2011
Posts: 11
Canada
99dej Offline
99dej  Offline
Joined: Sep 2011
Posts: 11
Canada
It just so happens I picked up a '10 Terrain with the 2.4l DI engine, and about 60,000 miles. We had a prior model 2.3l Quad IV back in the day, so am familiar with the motor, what it's like, how it sounds, OCI, etc.

When we got the terrain, it was still cold out, but the motor was a bit too noisy for my liking on the top end. I knew that this motor is supposed to be using Dexos or full synthetic oil in order to deal with direct injection, piston oil spray cooling, etc. I suspect that the prior owner did not use this oil, and then also, went by the OLM. I've changed the oil twice since I've owned it, using the proper oil, and not relying on the OLM. I also threw a bottle of PEA fuel treatment at each oil change. The motor has quieted down, ALOT. I suspect that cam followers would have been the least of the repairs had maintenance continued as the original owner had done.

I read that GM had an update to reflash the OLM and lessen the interval, I'm just going to use miles traveled instead. For me, it will be every 3000 miles, synthetic oil (or Dexos) and filter. Currently at 2500 miles, OLM is at about 40%, although I've noticed that the engine is getting a little bit louder, nowhere near what it was, but a bit. Oil is plenty darker too, so what the heck, I'll change it at 3k.

I figure this will be costing me an extra $100-$200 over the life of the vehicle for the smaller intervals, and my piece of mind. Hope this helps.


My small engine posse:
2 Backpack Blowers,
2 Deere String Trimmer
4 Chainsaws
3 Mowers
1 Rototiller
1 Hedge Trimmer
1 Briggs SB
1 Toro 221QE SB
Re: OLM for chevy DI engine [Re: merconvvv] #4470481
07/25/17 09:13 PM
07/25/17 09:13 PM
Joined: Oct 2006
Posts: 1,610
SE Pa
cmhj Offline
cmhj  Offline
Joined: Oct 2006
Posts: 1,610
SE Pa
When in doubt, change it out.


No PC fees paid to Amsoil dealers!
2018 Buick Enclave Essence
2013 Fiat 500
2012 Equinox LS
2016 Subaru Forester 2.5i Touring
A slug of old stuff
Re: OLM for chevy DI engine [Re: merconvvv] #4470490
07/25/17 09:20 PM
07/25/17 09:20 PM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline
bigj_16  Offline
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
I have already decided what I am going to do for our two new 2.7 Ecoboost F-150's. Had two dealer initial changes at about 2k miles. But I am going to go with dealer changes at every 5k miles for warranty purposes. In between, at 2500, I am going to dump just the oil, no filter change, and refill roughly 5 quarts with the same Motorcraft 5W-30. That'll take care of fuel dilution.

Re: OLM for chevy DI engine [Re: merconvvv] #4470523
07/25/17 10:29 PM
07/25/17 10:29 PM
Joined: Dec 2013
Posts: 2,098
socal
barkingspider Offline
barkingspider  Offline
Joined: Dec 2013
Posts: 2,098
socal
I say change oil at 15-20% left on olm


06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)
Re: OLM for chevy DI engine [Re: merconvvv] #4470542
07/25/17 11:26 PM
07/25/17 11:26 PM
Joined: Dec 2002
Posts: 41,556
'Stralia
Shannow Offline
Shannow  Offline
Joined: Dec 2002
Posts: 41,556
'Stralia
GM (for my Colorado) says change the oil at zero, and no more than 1,000km after 0%

Re: OLM for chevy DI engine [Re: Shannow] #4470623
07/26/17 05:46 AM
07/26/17 05:46 AM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline OP
merconvvv  Offline OP
Joined: Jul 2016
Posts: 682
il usa
Originally Posted By: Shannow
GM (for my Colorado) says change the oil at zero, and no more than 1,000km after 0%


Are you implying you actually listen to GM smile


1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: OLM for chevy DI engine [Re: merconvvv] #4470656
07/26/17 06:45 AM
07/26/17 06:45 AM
Joined: May 2013
Posts: 139
Monroe, WA
KevinP Offline
KevinP  Offline
Joined: May 2013
Posts: 139
Monroe, WA
Originally Posted By: merconvvv
Originally Posted By: Shannow
GM (for my Colorado) says change the oil at zero, and no more than 1,000km after 0%


Are you implying you actually listen to GM smile



You can listen to a group of engineers who put a lot of work into developing the algorithm... or ask a random group of people on the Internet.

I keep an eye on mine and change it around 10%. Not because I think there is that much harm from going past the 0% but because it nags at me to know it is close to zero. I also fill my fuel tank well before the light comes on. It is more for my own peace of mind.

Re: OLM for chevy DI engine [Re: merconvvv] #4470674
07/26/17 07:12 AM
07/26/17 07:12 AM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline OP
merconvvv  Offline OP
Joined: Jul 2016
Posts: 682
il usa
I like engineers !

But the criteria for designing the olm presented to the engineers is unknown to most of us.
If you know do share !

Car longevity v cost v convenience etc etc
Imagine if the olm had a few modes you could select from !

And its always nice to read what other bitog members are doing !!!

Last edited by merconvvv; 07/26/17 07:15 AM.

1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: OLM for chevy DI engine [Re: merconvvv] #4470728
07/26/17 08:13 AM
07/26/17 08:13 AM
Joined: Jun 2016
Posts: 3,566
MN
oil_film_movies Offline
oil_film_movies  Offline
Joined: Jun 2016
Posts: 3,566
MN
merconvv, That is a 2016. GM reduced OCI's on those DI engines, and their 3.6L V6, amongst other DI engines, a long time ago. They are on top of it now.

A lot of dumping of oil above. You can have your cake and eat it too. Here is how: Use an oil that is better than the worst dexos1 oil available. Like Castrol Edge gold bottle or M1 EP or M1 Ann Prot or Amsoil SS or a dexos1 Gen2 (timing chain wear test in there) , with a Fram Ultra or Microgreen oil filter for better filtering, and then simply go to 0% OLM. ... That way you have the comfort margin we seek. ....

Do a motor oil blot test http://www.machinerylubrication.com/Read/348/check-car-oil to check for too much soot or sludge building up, like once a month or so.

Re: OLM for chevy DI engine [Re: merconvvv] #4470869
07/26/17 10:13 AM
07/26/17 10:13 AM
Joined: Jan 2013
Posts: 1,676
Wisconsin
WiskyBadger Offline
WiskyBadger  Offline
Joined: Jan 2013
Posts: 1,676
Wisconsin
On our 2.4 the olm was at 20% at 6800 miles so I changed it. I will do the same this go round and get a uoa. I am using Mobil1 AFE 0w30


14 Buick Verano �Blanche� 61k Castrol Edge & Delco filter
01 Ford Ranger �Rick� 166k Castrol Magnatec Motorcraft
78 Chevy Stepside
11 Chevy Traverse 114k Carquest 5w30 and Carquest filter
Re: OLM for chevy DI engine [Re: merconvvv] #4471148
07/26/17 02:58 PM
07/26/17 02:58 PM
Joined: Dec 2002
Posts: 41,556
'Stralia
Shannow Offline
Shannow  Offline
Joined: Dec 2002
Posts: 41,556
'Stralia
Originally Posted By: merconvvv
I like engineers !

But the criteria for designing the olm presented to the engineers is unknown to most of us.
If you know do share !

Car longevity v cost v convenience etc etc
Imagine if the olm had a few modes you could select from !

And its always nice to read what other bitog members are doing !!!


When I got my car it was a demo, with 4,600km on it, and 15,000km/9 month servicing.

The engine had about 130 hours, and 30+ of them were idling...the OLM was 36 or 38% remianing, at <30% mileage.

Now it's got 9,720km on it, has had two more hours idling, and a whole bunch more highway...OLM is at 10%.

I did 800km recently and it didn't move a jot (that could be 1+% depending on the unshown decimal positions).

So the OLM, based on it beaing a dealer demo is going to pull me up around the 11-12,000km mark, but would have at 6,500 if it has stayed at the dealer.

In the absence of such, we would have been stuck with a "binary" answer of "normal, 15,000km", "severe 7,500km", but I'm getting a mid point as the driving style changed.

So I think the GM engineers have factored a lot of what appears to be sensible logic into their OLM.

Re: OLM for chevy DI engine [Re: merconvvv] #4471705
07/27/17 07:31 AM
07/27/17 07:31 AM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline OP
merconvvv  Offline OP
Joined: Jul 2016
Posts: 682
il usa
Thanks ya all for sharing the interesting informative stuff.


1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: OLM for chevy DI engine [Re: merconvvv] #4471813
07/27/17 09:12 AM
07/27/17 09:12 AM
Joined: Apr 2012
Posts: 3,159
Boston, MA
Bgallagher Offline
Bgallagher  Offline
Joined: Apr 2012
Posts: 3,159
Boston, MA
I would stick with the OLM. I forget the year but by 2016 they recalibrated the OLM for the DI engines which is very accurate and should be trusted. If she has limited miles I would just change it once a year


2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G
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